查询词典 carbon

Objective: Research the interface between C/C,CCH(fusional material of C/C and hydroxyapatite)implant and bone in the aim of providing experimental basis for developing a new dental implant.

目的：采用碳纤维增强碳复合材料(carbon fiber reinforced carbon，C/C)与羟基磷灰石(hydroxyapatite，HA)复合形成新型种植体，研究它们与骨结合界面的性质，为开发新型种植体提供实验依据。

Nature, most elements have two or more isotopes, the same kinds of elements in the quality of the various isotopes of different, but the types and proportion constant (except for radioactive elements). In 1961, the carbon content of the most abundant in nature, a kind of isotope, carbon-12 atom of a quantity and quality of C as a 12 mass units to it as "benchmarks" for all isotopes of an element according to the average abundance The ratio of the benchmark is the atomic weight of this non-prime, that is listed in the periodic table of atomic weights.

自然界中大多数元素都有两种或更多的同位素，同种元素的各同位素质量不同，但其种类和比例是恒定的。1961年，把碳在自然界含量最丰富的一种同位素，碳12的一个原子的质C量定为12个质量单位，把它作为"基准"，某种元素的所有同位素按丰度的平均值与基准之比，就是这种无素的原子量，即元素周期表列出的原子量。

The strain could denitrify sodium nitrate in aerobic environment and nitrify in the culture media with sodium acetate as carbon source and ammonium sulfate as nitrogen source , as well as acetamide as the sole carbon and nitrogen sources .

该菌株以硝酸钠为氮源时能进行好氧反硝化作用；以乙酸钠和硫酸铵分别为碳源和氮源能进行异养硝化作用，能以乙酰胺为唯一碳源和氮源进行生长。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

本文分别采用不外加碳源和维生素B〓外加碳源（包括乳酸钠、丙酸钠或乙酸钠）、外加维生素B〓以及同时外加碳源和维生素B〓的方法，考察了p，p'-DDT、γ-HCH和HCB三种氯代有机污染物单独或混合存在下，在辽河沉积物中缺氧脱氯降解的情况，主要得到以下结论

Theoretically,the intershell coupling makes energy bands of multiwalled carbon nanotubes split and the degeneracies in the energy bands reduced,and the bandgaps of multiwalled carbon nanotubes decreased.The small bandgaps of multiwalled carbon nanotubes ensure the presence of a vibrational manifold in the optical region for each shell so as to minimize optical emission.

计算结果表明，层间耦合使多壁碳纳米管的能带分裂，能级简并度降低，同时使多壁碳纳米管的带隙减小，小的带隙确保了每层中都存在振动模式，多数激发态电子通过相邻管的快速振动转化能量而产生无辐射跃迁，使其荧光很难观察到。

Greenhouse index Net emissions of three major greenhouse gases (carbon dioxide, methane and chloro- fluorocarbons), with each gas weighted according to its heat trapping quality, in carbon dioxide equivalents and expressed in metric tons of carbon per capita.

温室指标指三种主要的温室气体（二氧化碳、甲烷和氟氯烃）的净排放量，每种气体都按其热吸附质能加权，折算成二氧化碳当量，并以人均碳公吨表示。

Carbon alloys are defined as carbon in multi-component systems the components having carbon in different states of hybridisation or in relationship with other compounds.

或者在与其他化合物一起的关系碳合金作为碳在多零部件系统内确定有在hybridisation的不同状态内的碳的零部件。

The corresponding relations between the strain of the static state and dynamic cycle load and the volume resistance of the short chopped carbon fibers, short chopped carbon mat, unidirectional carbon fibers reinforced vinyl resin composites is existed. The physical modes of these kinds of composites are also designed based on the experiment data. The resistance and strain of the short chopped fibers reinforced vinyl composites satisfy the equation of y =A + Bx + Cx~2 in the static strain test method and the short chopped mat reinforced vinyl composites is y = A + Bx.

短切碳纤维、短切碳纤维毡、单向碳纤维增强乙烯基酯树脂复合材料在静态和动态循环载荷下，应变与电阻之间有较好的对应性，同时根据实验数据，建立了不同条件下该复合材料应变和电阻变化规律的物理模型，短切碳纤维增强乙烯基酯树脂复合材料在静态拉伸时电阻与应变之间满足：y=A+Bχ+Cχ~2；碳纤维毡增强乙烯基酯树脂复合材料在静态拉伸破坏时电阻与应变之间满足：y=A+Bχ。

Hours 24 hours 48 hours Nanjing emerging nickel-plated carbon steel with no rust apart from two black non-rust no rust apart from both ends of a nickel-plated carbon steel imports have local yellow a bit like rust rust spots increased , variable length of a nickel-plated carbon steel wire imported parts rust rust widespread area of 80%(4) Solderability: to achieve the same product of advanced standards.

16小时 24小时 48小时南京新兴镀镍高碳钢丝无任何生锈除两头发黑无生锈除两头无任何生锈某进口镀镍高碳钢丝有局部发黄有点状生锈点状生锈增多、变长某进口镀镍高碳钢丝部分生锈普遍生锈面积达80%（4）可焊性：达到同等产品先进标准。

Total carbon of Station C2-1、S11 and M07 is mainly composed of organic carbon,and this result confirms the conclusion that Chukchi Sea area is an efficient carbon accumulation area.

四个站位的TC含量为0.89%-2.17%，TN含量为0.24-1.66mg/g，TP含量为0.15-0.96mg/g，其中C21、S11和M07的总碳中均以有机碳为主，分析结果证实了楚科奇海区是一个高效的有机碳&汇&区的结论。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。